molluskandClaude Opus 4.8
b4d0f2db7b
Adds a mic input meter to Settings for gate calibration, replacing the blind noise-gate slider with a unified Discord/OBS-style control: the bar shows the live mic level and a draggable handle sets the gate threshold on the same axis. Fill is green above the gate (transmitting), dim below it (muted), with a live status word; the handle is bright red with a dark edge so it stays legible when the green level sweeps past it. Two level sources: - In-call: the capture thread peak-holds the raw (pre-gate, pre-mute) frame level and emits UiEvent::MicLevel ~10/sec. - Off-call: a "Test mic" toggle runs CoreCommand::SetMicMonitor, spinning up a standalone capture-only stream feeding run_mic_monitor. It shares the backend's single capture stream, so Join tears it down first and leaving Settings releases it; ignored while a session is active. The gate handle drags live via NoiseGateDragging (no disk write per pixel) and persists once on release via NoiseGateChanged. Meter axis is 0..0.3 so a normal voice doesn't peg. Enables the iced "canvas" feature for the custom GateMeter widget. Build + clippy clean, tests pass. Field-verified on desktop. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>